package com.itheima.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.itheima.mapper.EmpMapper;
import com.itheima.pojo.Emp;
import com.itheima.pojo.PageBean;
import com.itheima.service.EmpService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmpServiceImpl implements EmpService {


    @Autowired
    private EmpMapper empMapper;

//    @Override
//    public PageBean page(Integer page, Integer pageSize) {
//
//        //1,获取总记录数
//        Long count = empMapper.count();
//
//        //2，分页查询结果列表
//        List<Emp> empList = empMapper.page((page-1)*pageSize,pageSize);
//
//        //3，封装PageBean对象
//        PageBean pageBean = new PageBean(count,empList);
//
//        return pageBean;
//    }

    @Override
    public PageBean page(Integer page, Integer pageSize, String name, Short gender, LocalDate begin, LocalDate end) {

        //1，设置分页参数
        PageHelper.startPage(page,pageSize);

        //2，执行查询
        List<Emp> empList = empMapper.list(name,gender,begin,end);
        Page<Emp> p = (Page<Emp>)empList;

        //3，封装PageBean对象
        PageBean pageBean = new PageBean(p.getTotal(),p.getResult());

        return pageBean;
    }


    /*
    * 批量删除
    * */
    @Override
    public void delete(List<Integer> ids) {
        empMapper.delete(ids);
    }


    /*
    * 新增员工
    * */
    @Override
    public void save(Emp emp) {
        emp.setCreateTime(LocalDateTime.now());
        emp.setUpdateTime(LocalDateTime.now());
//        补全信息，创建时间和更新时间
        empMapper.insert(emp);


    }

    /*
     * 根据id查询
     * */
    @Override
    public Emp getById(Integer id) {
        return empMapper.getById(id);
    }

    @Override
    public void update(Emp emp) {
        emp.setUpdateTime(LocalDateTime.now());

        empMapper.update(emp);
    }

    /*
    * 根据用户名和密码查询员工
    * */
    @Override
    public Emp login(Emp emp) {
        return empMapper.getByUsernameAndPassword(emp);
    }
}
